Canonical has hinted that Ubuntu Netbook Remix is going to be renamed Ubuntu Netbook Edition, as found in the Blueprint for Ubuntu 10.04.
The change is more symbolic than anything, but it is a sign that netbooks are starting to get more dedicated attention. This may also be a move by Canonical to contrast the specificity of its products with Microsoft's. Microsoft offers OEMs a crippled version of Windows 7 in newer netbooks, and if netbook users get the hint that Canonical gives a damn about them, they may be more willing to make the switch.
Netbook Remix is mostly distinguished from ordinary Ubuntu Linux by using a series of categories (Accessories, Games, Internet, Office, etc.) rather than dropdown menus in the interface.
If you just can't wait, you can get Ubuntu Netbook Remix from Canonical here.
Via OMGUbuntu.